These are not examples of bad pronunciation. These elisions have been part of the English language for centuries, and are perfectly correct English. (But I would never use "whatever" in that context...

Ages ago when speaking German, a German asked me "you're not German are you?". He could not identify where I was from, but he knew I was not native German because I made no grammatical mistakes, and...

I'm not running - just trying to understand. There are strange things in English indeed, especially the negative of a past tense, where the past is expressed by did plus a present short infinitive: ...

Quite simple - all the examples you give are perfect participles and they all represent something in the past. No problem there. But using the pp for something in the future is illogical to me. As my...